Bottle cap



FIG. 1 is a top plan view of a bottle cap embodying my new design;

FIG. 2 is an elevational view, the opposite side being the same in appearance; and

FIG. 3 is an elevational view looking from the right of FIG. 2, the opposite side being the same in appearance.

The broken lines showing a bottle are for the purpose of illustrating environmental use only. 

The ornamental design for a bottle cap, as shown and described. 